{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:30:19Z","timestamp":1760236219329,"version":"build-2065373602"},"reference-count":15,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2021,11,2]],"date-time":"2021-11-02T00:00:00Z","timestamp":1635811200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A multiple-input multiple-output (MIMO) method that shares the same frequency band can efficiently increase radar performance. An essential element of a MIMO radar is the orthogonality of the waveform. Typically, orthogonality is obtained by spreading different signals into divided domains such as in time-domain multiplexing, frequency-domain multiplexing, and code domain multiplexing. This paper proposes a method of spreading the interference signals outside the range bins of interest for pulse doppler radars. This is achieved by changing the pulse repetition frequency under certain constraints, and an additional gain can be obtained by doppler processing. This method is very effective for improving the angular accuracy of the MIMO radar for a small number of air targets, although it may have limitations in use for many targets or in high clutter environments.<\/jats:p>","DOI":"10.3390\/s21217290","type":"journal-article","created":{"date-parts":[[2021,11,2]],"date-time":"2021-11-02T22:17:23Z","timestamp":1635891443000},"page":"7290","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Range Dividing MIMO Waveform for Improving Tracking Performance"],"prefix":"10.3390","volume":"21","author":[{"given":"Eun-Hee","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Defence System Engineering, Sejong University, 209 Neungdong-ro, Gwangjn-gu, Seoul 05006, Korea"}]},{"given":"Han-Saeng","family":"Kim","sequence":"additional","affiliation":[{"name":"LIGNex1 co., 207 Mabuk-ro, Giheung-gu, Yongin-si 16911, Korea"}]},{"given":"Ki-Won","family":"Lee","sequence":"additional","affiliation":[{"name":"LIGNex1 co., 207 Mabuk-ro, Giheung-gu, Yongin-si 16911, Korea"}]}],"member":"1968","published-online":{"date-parts":[[2021,11,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"97","DOI":"10.1109\/MSP.2020.2978507","article-title":"MIMO radar for advanced driver-assistance systems and autonomous driving: Ad-vantages and challenges","volume":"37","author":"Sun","year":"2020","journal-title":"IEEE Signal Process. 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